#111 of 497 high schools in Missouri
#5086 of 16,910 nationally
About Affton High
Affton High is a public high located in ST Louis, in the Affton 101 school district of Missouri, United States. It caters for Grades 9–12. In 2025 it enrolled 761 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 62.8 out of 100, placing it in the top 50% of high schools in United States and 111th of 497 ranked high schools in Missouri. Its strongest component is reading proficiency (70th percentile), and its weakest is students per teacher (50th percentile).
Other published figures: enrollment 761.
There are 199 schools in ST Louis; Affton High ranks 45th of 189 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)47%
- Reading proficiency (30%)67%
- Community advantage (fewer free/reduced-price lunch) (25%)41.3%
- Students per teacher (15%)14.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Affton High by the official sources.
- Enrollment
- 761
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 41.3%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 14.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 67%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 47%
- Share of tested students proficient or above (all students, all grades).
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Schools near Affton High
Closest schools by straight-line distance, with their Success Index (US).
Mesnier Primary Sch.
ST Louis · Public elementary · Grades PK–2
741 students · 1.1 km away
Gotsch Intermediate Sch.
ST Louis · Public elementary · Grades 3–5
562 students · 1.3 km away
Rogers Middle
ST Louis · Public middle · Grades 6–8
555 students · 1.6 km away
Bayless Senior High
ST Louis · Public high · Grades 9–12
562 students · 2.2 km away
Bayless Elementary
ST Louis · Public elementary · Grades PK–5
858 students · 2.2 km away
Bayless Junior High
ST Louis · Public middle · Grades 6–8
385 students · 2.3 km away
Edgar Road Elem.
ST Louis · Public elementary · Grades K–5
369 students · 2.5 km away
Busch MS Character Athletics
ST Louis · Public middle · Grades 6–8
361 students · 3.1 km away
Bierbaum Elem.
ST Louis · Public elementary · Grades K–5
531 students · 3.5 km away
Community Access Job Training
ST Louis · Public high · Grades 8–12
85 students · 3.6 km away
Similar schools
Public high schools in Missouri with a comparable Enrollment.
Excelsior Springs High
Excelsior Springs · Public high · Grades 9–12
764 students
Nevada High
Nevada · Public high · Grades 9–12
754 students
Savannah High
Savannah · Public high · Grades 9–12
752 students
Perryville Sr. High
Perryville · Public high · Grades 9–12
743 students
Monett High
Monett · Public high · Grades 9–12
742 students
St. Charles High
ST Charles · Public high · Grades 9–12
782 students
Frequently asked questions
Is Affton High a good school?
Affton High has a Success Index (US) of 62.8 out of 100 (Top 50% of high schools in United States) and ranks #111 of 497 in Missouri. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Affton High rank in Missouri?
Affton High ranks #111 of 497 high schools in Missouri and #5086 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Affton High?
Affton High had 761 students in 2025.
Is Affton High a elementary school or a high school?
Affton High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Affton High?
There are 10 schools within 15 km of Affton High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.